walker



' 4 Sheets-Sheet 1. W. H. WALKER 8: T. H. BOYCE.

(No Model.)

STREET SWEEPER.

TTOHNEYS.

Nl/ENT W56 m ae (No Model.) I 4Sheets -Sheet 2, H. WALKER 8v.T. H. BOYCE.

STREET SWEEPER.

Patented Dec. 18, 189 4.

lNVENT HS W% a/ MAM N A TTOHNE YS.

(No Model.) 4 sneets sneet 3'.

W. H. WALKER '85 T. H-BOY-CE.

STREET SWEEPBR.

NE 358.- m

ATTORNEYS.

(No Model.) 4 Sheets-Shet 4. W. H; WALKER8: T. H. BOYCE.

STREET SWEEPER.

Patented Dec. 18 894.

WE i

A TTORNE Y8.

THE Nonms PETERS co. FwoTouTua, wlaumsron. u. c

WILLIAM H. .WALKER AND THOMAS H. BOYCE, OF NEW YORK, N. Y.

STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 531,079, dated December 18, 1894.

' Application filed January 19, 1894. Serial No. 497.411. (N0 model.)

To all whom it may concern.-

.Be it known that we, WILLIAM HENRY ing Machine, of which the followingis a full,

clear, and exact description.

The object of the invention is to provide a new and improved street sweeping machine, which is comparatively simple and durable in construction, very efiective in operation, and arranged in such a manner as to thoroughly sweep up the dirt from the street, discharge it into carts successively connected with the machine and which when filled are detached and driven to the place of dumping, so as to insure a continuous sweeping, removing and dumping.

The invention consists of an elevator having a casing provided with an inlet and an outlet, and alternately arranged scrapers and buckets, of which the latter receive the sweepings from the scrapers.

The invention also consists of certain parts and details and combinations of the same, as will" be hereinafter described, and then pointed out in the claims. I

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improvement; Fig. 2-is a perspective view of the gutter brush. Fig. 3 is a plan view of the improvement. Fig. 4 is an enlarged sectional sideelevation of the improvement. Fig. 5 is a similar view of the same-with parts in a different position. Fig. 6 is a rear elevation of the pulley support for raising and lowering the main brush. Fig. 7 is a transverse section of the elevator scraper; and Fig. 8 is a similar view of the bucket.

The improved street sweeping machine is provided with a vehicle having the two large wheels A and A, mounted to rotate loosely on an axle A supporting the main frame B,

provided at its front end with a truck B,

adapted to travel with its wheels on the ground. The frame B supports between the wheels A and A, the circular casing 0, forming part of an elevator 0, adapted to take the sweepings from a pan D, pivoted at D on the said casing at the lower end thereof and slightly in the rear below an opening 0 formed .in the said circular casing O. The sweepings pass onto the pan D from the re- Volving brush E, arranged transversely in the rear of the casing O and rotating in an opposite direction to the motion of the wheels -A and A, so that the brush on coming in contact with the street, sweeps the dirt upward and forward onto the pan D.

The elevator 0 takes hold of the dirt or sweepings on the pan D, carries it upward and discharges it through a chute 0 onto a hinged plate 0*, extending into a cart F, or other similar vehicle adapted to be driven by one or more animals, the said cart being temporarily connected by ropes F, or other means with the truck B, so that the cart serves as the propelling medium for the machine. The latter dumps its sweepings into the cart F and ED STAT S PATENT OFFICE. I

when the latter is filled with sweepings, the

ropes F are disconnected from the cart F and an empty cart is substituted in its place, to be filled and to serve as a medium for drawing the sweeper forward along the street.

By reference to Fig. 3, it will be seen that the cart is provided with additional singletrees F besides the center singletree F and shafts Ffloccupied by the animal drawing the .cart from and to the place of dumping. The additional singletrees F are necessary for two or more animals, to assist in drawing the machine alongat the time the cart F is attached-to the truck B by the ropes F.

The elevator C is constructed as follows: Alternately arranged scrapers G and buckets H are hungon the outer ends of sets of spokes I and 1 respectively, forming part of a wheel I, mounted to turn within the casing O. This wheel .I is provided witha hub I through which extends the axle Aiasv plainly shown in Figs. 4 and 5, and this hub 1 extends at when the machine is drawn forward, then the rotary motion of the wheel Acauses a rotary motion of the pulley J and shaft J in an inn verse direction, owing to the crossed belt connecting the pulley J with the pulley J". The rotary motion of the pulley J 2 on the said shaft J is transmitted by the belt J to the pulley J, and consequently the wheel I carrying the scrapers G and buckets II is rotated in the direction of the arrow at, that is, the inverse direction in which the wheels A and A are rotated, during the forward movement of the machine. Each of the scrapers G is provided with a transverselyextending scraper bar G, attached to two arms G preferably made Z-shaped and hung loosely on a transversely-extending rod 1 connecting two opposite spokes of the set of spokes I of the wheel I with each other. The two arms G are rigidly connected with each other by transverse stay rods G as plainly indicated in Figs. 4, 5 and 7.

The arms G on account of being hung loosely on the rod I readily pass into the opening 0 in the casing C at the time the corresponding set of spokes I pass downward, so that the scraper bar G passes onto the outermost end of the pan D to engage the accumulated sweepings thereon and to drag them inwardly into the casing O on the further rotation of the wheel I in the direction of the arrow or. The scraper bar G then carries the sweepings along the inner circular sur face of the casing C until finally the arms G", by their weight, swing into a vertical position, see Fig. 4, thus moving the scraper bar G away from the rim of the casing C to permit the sweepings to pass into the bucket II next following this particular scraper.

Each bucket II is provided with a U -shaped bucket proper, H, secured in two oppositelyarranged arms 1-1 hung loosely on a transversely-exteudin g rod 1 secured on two oppositely-arranged spokes of a set of spokes I u as will be readily understood by reference to Figs. 4 and 5. The two arms H are rigidly connected with each other by stay rods H and H of which the stay rod H is located near the bottom of the U-shaped bucket 11 and projects beyond the outer faces of the said arms 11*, so as to move in contact with segmental cams 0 extending over the opening (J near the sides thereof, next to the heads ofthecasingO. SeeFig.8. Thus,thebuckets II in descending in the rear part of the easing 0 engage with theprojecting ends of the rod H and the earns 0 so as to hold the buckets H in alignment with the inner surface of hind the next forward scraper G, so that the latter, on swinging away from the rim in assuming the vertical position, as above described, causes the sweepings to fall into this bucket 11. Guards C located in advance of the cams C serve to prevent a lateral escape of the sweepings carried up by the scrapers.

It is understood that while the scraper G moves upward with the sweepings from the opening C toward the chute C the arms G of the said scraper extend rearwardly from their spokes I, while the following bucket H is held in front of'its spokes I by the arms 11*, to readily gather the sweepings dropped from the scraper plate H. Now, as the wheel I rotates in the direction of the arrow at, the scrapers G are held farthest from the chute C while the upwardly moving and filled buckets I-I pass readily into the chute-C as indicated in Fig. 5, so as to discharge the contents of the buckets proper H, through the chute C over the plate 0 into the vehicle F. On the further upward movement of the corresponding set of spokes I the arms 11 of the bucket just having discharged its contents in the chute C readily swing out ofthe latter by their own weight.

In order to prevent the scrapers G and buckets H from swinging too far during the time they pass through the upper half of the casing O, we provide the corresponding spokes of a set of spokes I with transverselyextending stop rods I, for the scrapers G and the corresponding spokes of a set of spokes I with similar stop rods 1 for the buckets I-I. Thus, it will be seen that one scraper removes the sweepings from the pan D, drags it into the casing O and carries it along part of the rim thereof, to finally drop it to permit the sweepings to pass into the following bucket H, which delivers the sweepings to the chute C and plate 0 over which they readily slide down into the vehicle F.

The brush E is journaled in suitable bearings in L-shaped arms E, pivoted to the frame B and connected by upwardly-extending ropes E, with transversely-extending levers E pivotally-connected with each otherat or near the center of the machine, as plainly shown in Fig. 3. The connected ends of the lovers E are connected with a rope K, extending first downwardly under a pulley K, journaled on a transverse beam of the frame B, as plainly illustrated in Figs. 3, 4, 5 and 6.

The rope K then extends upward and passes either entirely out of contact with the street or in contact, to sweepthe street and carry the sweepings onto the pan D.-

In order to drive the brush E, we provide one outer end of its shaft with a pulley-E connected by a crossed belt E, with a pulley E secured on the inner face of the wheel A', as plainly shown in Figs. 1 and 3. Thus, when the machine is drawn forward and the to wheel A revolves in the inverse direction of the arrow 61-, then the-pulley E", by the crossed belt E and pulley E causes the brush E to revolve in the direction of the arrow 1), that is, in the inverse direction in which the wheel A is moving.

In order to raise and lower the pan D, we connect the sides-of the said pan with upwardly-extending ropes D passing over pulleys D secured on the rim of the casing near the upper end thereof, as plainly shown in Figs. 3, 4. and 5. The ropes D then extend transversely to pass over pulleys D secured on therim of the casing O, the ends of the said ropes then extending forwardly to connect with a common rope D extending longitudinallyand connected with a lever D likewise fulcrumed in a notched segment L and likewise under the control of the operator seated on the seat N. By the operator mov- 0 ing the lever D forward or backward, the

pan D can be conveniently raised or lowered, so as to move the pan out of contact with obstructions in the street whenever necessary, or in contact to receive'the sweepings.

In order to clean gutters along the street, we provide one side of the machine with a gutter brushO, preferably arranged obliquely to the longitudinal center line of the machine, as indicated in Figs. 1 and 3. This brush 0 40 (see Fig. 2) is journaled in a frame P, provided with a rod P, mounted to turn and'to slide transversely in forked bearings B forming a part of the main frame B. The rod P' is adapted to be raised and lowered so as to raise and lower the brush 0 according to re quirements, and for this purpose the said rod P is connected by a short rope or chain Q, with an arm Q',.attached on a transverselyextending shaft Q journaled in suitable 5o bearings on the frame B. The outer end of 6o lever in a locked position.

the shaft Q is provided with an arm Q connected with a rearwardly-extending rope Q passing under a pulleyQ journaled in one side of the casing C. The rope then extends upward and passes over a second pulley Q, to then extend forward to connect with a lever Q similar to the levers K and D and likewise adapted to be engaged in a notched segment L as shown in Fig. 3, to hold the said This lever Q is likewise under the control of the operator seated on the seat N to enable the operator to raise and lower the brush whenever deemed necessary. As the supporting rod P of the frame P carrying the brush 0 is freeto slide a pulley 0 secured on a transversely-extend- 1 ing shaft 0 journaled in suitable bearings in the frame B. The forward end of this shaft 0 is provided with a pulley 0 over which passes the crossed belt 0", also passing over a pulley 0 secured on the pulley E so that the rotary motion of the wheel A causes a rotary motion of the brush 0' in the direction of the arrow 0 to throw the sweepings rearward and somewhat transversely into the path of the brush E following in the rear of the machine.

The operation is as follows: When the vehicle F is connected with the truck B and the animals are attached to the vehicle F at the singletrees F and F, then the machine can be drawn forward through the street, so that the several parts are'set in motion from the driving Wheels A and A, as previously described. The brush E is driven from the wheel A so as to cause the dirt to be swept onto the pan D, from which the sweepings are removed by the scrapers G into the easing 0, from which the sweepings are finally discharged into the buckets H, which carry the sweepings into the ch uteC and discharge the same therein. The sweepings pass down the inclined chute O and plate 0 into the vehicle F, in which the sweepings accumulate until the said vehicle is filled. When thishas been done, this vehicle is detached from the truck B and an empty and similar one is attachedin place, and at the same time the animalsattached to the single-trees F are disconnected from the vehicle F and the single animal hitched to the single-tree F in the shafts F draws the filled cart to the place of dumping, to dump the contents and return with the empty cart to the machine. It will be seen that by this arrangement a continuous sweeping, revolving and dumping of dirt can be accomplished, and only a few vehicles F going from and to the dumping place, to and from the section of street in which the machine operates, are necessary.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent 1. A street sweeping machine provided with an elevator havinga casing, provided with an inlet and an outlet and alternately arranged scrapers and buckets, adapted to travel along the casing from the inlet thereof to the outlet, the scrapers being constructed to bring the dirt withinthe casing, and the buckets to discharge the dirt from the casing, substantially as shown and described.

2. The combination, with the elevator casing, having an inlet and an outlet, and the adjustable paniarranged at the inlet of the IIO casing, of a wheel mounted to revolve within the casing, and alternately arranged scrapers and buckets held loosely on the wheel, the scrapers being constructed to bring the dirt from the pan within the casing, and the buckets to discharge the dirt through the outlet of the casing, substantially as described.

3. A street sweeping machine comprising driving wheels, an axle carrying the said wheels, a frame supported on the said axle, an elevator supported on the said frame and provided with a casing having an inlet and an outlet, and a revolving wheel carrying alternately arranged scrapers and buckets, the scrapers being adapted to bring the dirt within the casing, and the buckets to discharge it therefrom a pan hinged on the rim of the said casing at the inlet opening of the latter, and a brush mounted to turn, to sweep the dirt onto the said pan, the said brush being driven from one of the said drive wheels, substantially as shown and described.

4. A street sweeping machine comprising driving wheels, an axle carrying the said wheels, a frame supported on the said axle, an elevator supported on the said frame and provided with a casing having an inlet and an outlet, a revolving wheel carrying alternately arranged scrapers and buckets, the scrapers being adapted to bring the dirt within the casing, and the buckets to discharge it therefrom a pan hinged on the rim of the said casing at the inlet opening of the latter, a brush mounted to turn, to sweep the dirt onto the said pan, the said brush being driven from one of the said drive wheels, and means, substantially as described, for raising and lowering the said brush and the said pan, substantially as shown and described.

5. A street sweeping machine comprising driving wheels, an axle carrying the said wheels, a frame supported on the said axle, an elevator supported on the said frame and provided with a casing having an inlet and an outlet,a revolving wheel carrying alternately arranged scrapers and buckets, the scrapers being adapted to bring the dirt within the casing, and the buckets to discharge it therefrom a pan hinged on the rim of the said casing at the inlet opening of the latter, a brush mounted to turn, to sweep the dirt onto the said pan, the said brush being driven from one of the said drive wheels, and a vehicle adapted to be connected with the front of the said frame, and adapted to be connected with the discharge chute of the said casing, substantially as shown and described.

6. Astreet sweeping machine provided with an elevator comprising a fixed circular casing having an inlet opening in its rim, and a discharge spout likewise in the rim, a wheel mounted to turn within the said casing, scrapers and buckets held loosely on spokes of the said wheel, the scrapers being adapted to bring the dirt within the casing, and the buckets to discharge it therefrom, and earns arranged in the said casing and adapted to be engaged by projecting ends of the said buckets to hold the latter in a forward position, substantially as shown and described.

7. A street sweeping machine provided with an elevator comprising a fixed circular casing having an inlet opening in its rim, and a discharge spout likewise in the rim, a wheel mounted to turn within the said casing,scrapers and buckets held loosely on spokes of the said wheel, the buckets being adapted to discharge the dirt from the casing, and cams arranged in the said casing and adapted to be engaged by projecting ends of the said buckets to hold the latter in a forward position, and a pan hinged to the said casing at the rim thereof, and at the lower end of the inlet opening, the said scrapers being adapted to pass through the inlet opening onto the pan to engage the sweepings and move the same inwardly into the casing, substantially as shown and described.

8. A street sweeper provided with a circular casing having an inlet and a discharge spout, a wheel mounted to revolve in the easing, and a series of buckets each having a loose pivotal connection with the wheel so as to be able to make a complete rotation relatively to the wheel while the same turns in the casing, the buckets being adapted to pass into the discharge spout to discharge the sweepings into it, substantially as shown and described.

WILLIAM H. WALKER. THOMAS H. BOYCE. Witnesses:

P. J. RooN,

THEO. G. HosTER, 

